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Eccotemp L5 Tankless Water Heater

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Overview — Eccotemp L5 Portable Outdoor Tankless Water Heater

Whether you’re camping with the family, spending a day at the lake, or lounging around the pool, sometimes all you need is a nice hot shower. Simply attach a garden hose and a 20 lb. propane tank and you are guaranteed to enjoy the luxury of endless hot water anywhere. The Eccotemp L5 Portable Propane Tankless Water Heater is the original and best-selling portable water heater on the market today. You get instant, endless hot water wherever you are. The L5 is perfect for campsites, cabins or simply around the house. Wash your car, wash your boat, take a hot shower, or even wash your horse and the L5 will help make daily tasks much easier. The L5 is capable of reaching temperatures between 50 to 120 degrees Fahrenheit. This model includes an electronic ignition powered by 2 "D" cell batteries making it great for off-grid or any location where electricity is not readily available. The ideal operating range for the L5 is 20~80 PSI with a 1.5 GPM flow. It is compatible with 12-volt pumps and works perfectly with our EccoFlo Pump & Strainer.


  • Being Designed and developed in Summerville SC USA, The Eccotemp L5 is the only legal CSA Certified portable tankless water heater on the market that can legally be sold in the US and Canada!
  • Lightweight, easy to carry, and compact, makes using it for camping, hunting, in your Tiny Home, RV’s, Poolside, Washing Pets, Equestrian, Cleaning Vehicles, Greenhouses or anywhere else that you need instant reliable endless hot water perfect for hot water anywhere you need it.
  • Runs on a standard 20 lb. liquid propane tank and is equipped with electronic ignition. Powered by 2 “D” cell batteries, making it ideal for on-the-go. Make the L5 even more convenient and pair it with the EccoFlo 12v water pump, allowing you to have hot water in the most remote locations!
  • Real, appointment-based dedicated support is available M-F, 8 am-8 pm EST. Eccotemp also offers live chat and 24/7 self-help desk to keep you in HOT WATER. With educated technical support, manuals, troubleshooting all available at your fingertip you’ll have peace of mind when purchasing an Eccotemp product.
  • Super charged 37,500 BTUs and rated at 1.5 GPM, the L5 can produce hot water with water pressure as low as 20PSI and achieve temperatures ranging from 50-120 degrees F. Simply adjust the water and gas flow to achieve your desired temperature.


What’s in the box?

  • 1 x L5 Portable Tankless Water Heater
  • 1 x CSA Certified Gas Regulator and Hose
  • 1 x 1/2" - 3/4" Garden Hose Adapter
  • 1 x Hardware Pack
  • 1 x 3/4“ Quick Connector Set
  • 1 x Roll of Pipe Tape
  • 1 x Instruction Manual
  • 1 x Shower Head and 6 ft. Hose


Recommended Uses:

  • Camping
  • Emergency Preparedness
  • Off-Grid
  • Animal Washing
  • Food Trucks 
  • Outdoor Shower
  • RV’s
  • Pool Side Shower
  • Outdoor Recreation
  • Hunting 
  • Cabins
  • Tiny homes


Warranty — Eccotemp L5 Portable Outdoor Tankless Water Heater

OffGrid Harbor is an Authorized EccoTemp Dealer

Includes all applicable Manufacturer Warranties

Ships direct from manufacturer

Additional Lifetime support from our specialists

Specs — Eccotemp L5 Portable Outdoor Tankless Water Heater

Current Stock:
Availability: Usually ships in 4 to 6 business days
Condition: New
Power Type Liquid Propane (LP)
Applications Camping
Applications Tiny Home
Applications Food Truck
Applications Equestrian/Barn/Farm
Applications Hunting
Applications Pet Bathing
Applications Off-Grid
Applications Emergency Prep
Applications Green House
Applications Outdoor Shower
Applications Van Conversion
Applications Recreation/Camping
Installation Outdoor (Temporary Installation)
Flow Rate 1.5 GPM
Color White
Map Zone Southern Region
Map Zone Mid Region
Map Zone Northern Region

FAQs — Eccotemp L5 Portable Outdoor Tankless Water Heater

Q: Do I have to take down my portable unit (L5/L7/L10) and store it inside after each use? How protective is the overhead Shield to rain/debris?

Answer: Yes, you have to bring it inside if it is not being used. The top shield is just a heat-shield and not intended as rain protection. Leaving your water heater outside in the elements can cause damage to the water heater and will void your warranty. The portables are NEVER to be permanently installed.

Q: What is the max temperature my tankless water heater can achieve?

Answer: The temperature can vary based on the temperature of the incoming water. Each of our tankless water heaters offer at least a 35-40 degree F temperature rise based on the temperature of your incoming water. You will need to adjust the heater to the preferred temperature.

Q: Why do I need to clean my tankless water heater? Is it really necessary?

Answer: Yes. It is important to clean and descale your unit at least every 6 months to maintain its flawless performance. You can use our Eccotemp EZ Flush Descaler Kit. This will get rid of any water scale, lime, or rust deposit buildup in virtually any piece of water based equipment. Your water heater will run the risk of overheating and can deteriorate its effectiveness if you do not keep up with flushing your water heater.

Q: Can my L5/L7/L10 be permanently mounted outdoors, even if it’s a warmer climate with no freeze worries?

Answer: Although all our portable models are for outdoor use, be sure to bring the unit indoors. When not in use, the unit should be drained, taken down and stored in a safe place away from the elements. Leaving the unit outdoors for prolonged periods of time can cause debris buildup, birds, leaves, dust, mice, bugs, etc. to make homes in your unit causing a fire hazard. Leaving your unit outdoors and not following the recommended use will void your warranty.

Q: Can my tankless water heater freeze, even if it's installed indoors in a heated space?

Answer: It depends on the model. The L5, L7, L10, i12, FVI12, & iE Series do NOT come with any anti-freezing technology to help prevent freeze damage. This means that even if your i12 for example is installed indoors, it is not protected from freeze damage. The freeze damage can occur from cold air entering the internal chambers of the water heater via the venting. The 45H/HI, EL22/EL22i, 20H/20HI, all come with a built-in anti-freeze technology in the form of heating blocks. In order to ensure these blocks are doing their job, you must keep your water heater plugged in at all times. These blocks help prevent freeze damage to the heat exchanger, but is NOT a guarantee. Proper installation and maintenance must be followed to ensure that your water heater will last as long as possible.

Q: How do I check for Gas leaks?

Answer: After you have your gas connected to your unit, spray some soapy water or Windex sort of mixture on the connection and if you see bubbles, then you have a leak. If no bubbles, you are good to go with no leaks.

Q: Where’s the pilot light in the Eccotemp tankless water heaters? I can’t seem to find it.

Answer: Our products do not have pilot lights. There is an electronic ignition or battery powered ignition depending on the model of the water heater. The unit will ignite when there is hot water being requested of it and it will go out when you're done using the hot water.

Q: Can the PortaHot (L5) Be Left Out In The Weather?

Answer: The unit has to be sheltered when not in use or there are rodents and such that can get in to the unit and damage it. As for the weather, rain and cold air “FREEZING” will damage the unit. It must be taken down in those times. Leaving your water heater outside in the elements can cause damage to the water heater and will void your warranty. The portables are NEVER to be permanently installed.

Q: Can I convert my Natural Gas tankless water heater to use Liquid Propane instead?

Answer: No. Unfortunately, there are certain parts within each unit that are gas specific and not able to be converted to any other gas type.

Q: What are the clearances for the installation of my water heater?

Answer: The clearances vary depending on the model, but safely should be: At least 1-2 ft on top, 18" minimum at the bottom, 8-10" left and right, 6" from the wall, 2-3 ft from an open window

Q: What are the fittings made of on the water heaters?

Answer: The fittings are made of steel and all have external threads.

Q: What is the length of the shower hose that comes with my L5?

Answer: The shower hose is 6 ft in length.

Q: Can I use PVC pipe for my venting?

Answer: Using any other material than what is recommended by CSA standards will void your warranty. You must use Stainless Steel Category II venting.